Home / 3,960.22-5,461.68-2,848.51

Finding the Fourth Proportional to 3,960.22, 5,461.68 and 2,848.51

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Solution

The fourth proportional to 3,960.22, 5,461.68 and 2,848.51 is: 3,928.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.22 : 5,461.68 = 2,848.51 : x
  2. Step 2: Convert to fraction form
    3,960.22/5,461.68 = 2,848.51/x
  3. Step 3: Cross multiply
    3,960.22x = 5,461.68 × 2,848.51
  4. Step 4: Simplify right side
    3,960.22x = 15,557,650.10
  5. Step 5: Solve for x
    x = 15,557,650.10/3,960.22
  6. Step 6: Final answer
    x = 3,928.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.